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05-18-2011, 07:13 PM
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#1 |
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My Carbon Footprint
Join Date: Oct 2008
Location: Orygun
Posts: 5,527
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How to patina aluminum/pot metal in one day???
Okay.....let me explain. I recently got in one of the more rare Holley GM muscle car carburetors (If you must know, it's a list 3247 '66 CORVETTE 425hp 427 carb). The fact that the guy that listed it on ebay and had know idea what it was is irrelevant.
 The fact that I paid $45 SHIPPED is also irrelevant. The fact that it is worth hundreds of dollars in unrestored condition is further irrelevance! Now that I am done boasting, here is the issue. The carb is 100% correct except it doesn't have the vented front bowl. It's only 2 more machining steps that Holley did to their stock center hung 4160/4160 bowls. I can buy them pretty cheap new but it will look very odd on a 45 year old carb. I drilled the 2 necessary holes and tapped the one, so that part is done. Now I have two super bright and shiny holes in a very old bowl and I need to figure out how to dull up the 2 holes so they look like old metal. What can I use to really dull up the shiny part the new holes made? Thanks! |
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05-18-2011, 07:21 PM
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#2 |
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Registered User
Join Date: Aug 2010
Location: Airmont NY
Posts: 72
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Re: How to patina aluminum/pot metal in one day???
If they are brass try using white vinigar or muratic acid. I know it works on copper flashing and some raw sculpted brass. Good luck.
Last edited by Toms1968; 05-18-2011 at 07:21 PM. |
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05-18-2011, 07:46 PM
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#3 |
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Old Skool Club
 
Join Date: Jun 2001
Location: Benton, AR "The Heart of Arkansas"
Posts: 10,880
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Re: How to patina aluminum/pot metal in one day???
Here you go....
__________________
Member Nr. 2770 '96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed. '69 C-10 SWB; 350/TH400 - in limbo The older I get, the better I was. |
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05-18-2011, 11:27 PM
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#4 |
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Registered User
Join Date: Jun 2006
Location: Indiana
Posts: 4,859
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Re: How to patina aluminum/pot metal in one day???
Sodium Carbonate + water should blacken aluminum real quick. Steel wool would shine it back up to what ever degree you want. You can find sodium carbonate at any pool supply store. It will be call PH UP or something like that.
__________________
'70 GMC C1500 LWB Power disc brakes. WooHoo! Posi 6 Lug Dana 60 |
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05-18-2011, 11:51 PM
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#5 |
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Registered User
Join Date: Jul 2010
Location: Vista Ca.
Posts: 2,405
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Re: How to patina aluminum/pot metal in one day???
Muratic Acid will blacken aluminum instantly, giving an aged look. Just did this to a set of Z/28 valve covers.
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05-19-2011, 01:28 AM
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#6 | |
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Junior Member
Join Date: Mar 2007
Location: DAYTON
Posts: 505
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Re: How to patina aluminum/pot metal in one day???
Quote:
yep. kinda gives an old magnesium look just not as black
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frontstreetcycle on Instagram |
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05-19-2011, 11:17 AM
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#7 |
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Registered User
Join Date: Jul 2009
Location: Houston, Tx
Posts: 1,133
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Re: How to patina aluminum/pot metal in one day???
use hair and grease remover it will dull the **** out of aluminum
__________________
1972 SWB Medium Olive South Houston Instagram: Antbish84 |
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05-19-2011, 12:52 PM
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#8 |
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My Carbon Footprint
Join Date: Oct 2008
Location: Orygun
Posts: 5,527
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Re: How to patina aluminum/pot metal in one day???
I am about to pull the bowls out of some nasty carb cleaner I had. I remembered that it did a good job of discoloring carb parts when I didn't want it too! lol
I didn't post any "pichers" because the parts have been in the cleaner. I don't have a solvent resistant underwater camera! |
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